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v MLE. LANGE AND T. NORTON.

TOOL HOLDER. I APPLICATION FILED NOV- 7, 192'1.-

1,434,,78@, v PatentedNov. 7,1922.

M. E. LANGE AND T. NORTON.

TOOL HOLDER.

APPLICATION man NOV. 7, 1921. 1 1,434,782. Patented Nov 7, 1922.

' 2 SHEETS-SHEET WU! Q w 6 & E Y W p u E I E Q E Q) *LCZ i Kg Q v. .5 N i I tit) Patented Nov. 7, 1922. v

UNITED STATES PATENT'OF 1,434,782 F l C E MAX E. LANGE AND THEODORE NORTON, CLEVELAND, OHIO, ASSIGNORS TO THE WAENER AND SWASEY COMPANY, OF CLEVELAND, OHIO, A CORPORATION OF OHIO.

TOOL HOLDER.

Application filed November 7, 1921. Serial No. 513,238.

To all whom it may concern:

Be it known that we, MAX E. LANGE and Tmononn NORTON, cit1zens of the United States, and residents, respectively, of Cleveland, in the county of Cuyahoga and State of Ohio, and Cleveland in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Tool Holders, of which the following is a' full, clear, "and exact description.

This invention relates to an improved tool holder for lathes and other machine tools, and has for its chief object to plrovide a holder which is simple and compact in construction and sufficiently rugged and strong to withstand the abuse of heavy cutting in the removal of stock from the work, and which yet retains the feature of fine and accurate adjustment for the cutter, and the positive and secure binding of the cutter slide in place.

The improved cutter holder constituting the subject matter of the present invention is of the type or form comprising an adjustable slide carrying the tool or cutter, capable of fine and accurate adjustment, preferably by a combined graduated dial and adjusting screw, and adapted to besec-ured in any adjusted position to the slide holding member by a clam or binding screw. The chief feature of t e present invention lies in the fact that the clamp or binding screw which is utilized to secure the slide to the slide receiving member which supports it, is located between the adjusting screw and the slide, this location of the binding screw between the slide and adjusting screw being responsible for great stifi'ness and positive positioning of the slide.

The invention may be further briefly. summarized ascensisting in certain novel details of construction, and combinations and arrangements of parts which will be de scribed in the specification and set forth in the appended claims.

In the accompanying sheet of drawings wherein we have shown the referred embodiment of the invention, Fig. 1 is a top plan view of a cutter holder embod ing our invention; Fig. 2 is aside view of t e same; Fig. 3 is a sectional view substantially along the line 3 3 of Fig. 2 omitting the cutter;

Fig. 4 is a sectional view substantially along the line 4-4 of Fig. 1; Fig. 5 is a plan view of the cutter slide; Fig. 6 we side view of which the holder may be secured in a suit able part of the machine withwhich the holder is to be employed, and having at the end of the shank an enlarged part or head 1 10 which in this instance is rectangular but might be otherwise shaped. At the. front of the head 10 there is a dovetail projection 11 of the cutter slide 11. This slide has at the front a slot 11 to receive the tool or cutter 12 which is adapted to be secured to the slide by set screws 13, the slot being here shown diagonally disposed though it might be vertica For the purpose of adjusting the slide to a fine accurate adjustment or setting, an adjusting screw 14; is utilized, this adjusting screw having in this instance beneath the square (or other suitable shape) head '14, a pair of flanges 14 and 14, the top flange 14* being provided with graduations to facilitate accurate setting of the slide The flanges receive between them an extension 11 of the dove-tail projection 11 on the back of the slide so that as the adjusting screw is moved up and down, the same vertical movement is transmitted to the slide 11. To permit this relative movement between the head of the body or holding member 10 and the adjusting screw and slide, the head 10 is provided with a recess 10 in which the flanges 14 and 14 and extension 11 may enter. Beneath the recess 10 the head has a tapped opening 10 to receive the threaded lower part'of the adjusting-screw 14. Alongside the threaded opening 10 the head .10 is provided with a slot or saw out 10 which extends inwardly a suitable distance from the dove-tail slot 11.0 to rovide the necessary holding member 10 of the holder. Likewise it will be observed that the clamping screw is located between the slide 11 and the adjusting screw 14, whereas in all prior cutter holders of which we are aware, the clamping screw has been located some distance from the end of the slide holding member to the rear of the adjusting screw. This novel location of the clamping screw is made possible by reason of the fact that the dovetail projection 11 of the cutter head is provided with a notch or slot 11, the length of the slot being such that it affords sufficient clearance to permit maximum adjustment of the slide 11 by the adjusting screw 14 without the slide striking or engaging thertransverse clamping screw.

WVhen the slide has been adjusted to any desired position by the screw 14, it is effectively secured in that position by tightening the screw 15 which draws the two halves of the dove-tail part at the front of the head 10 tightly against the dove-tail projection on the rear of the slide 11 the slight closing in of the dove-tail end of the head onto the correspondingly shaped part of the slide being possible by reason of the slot 10.

The location of the clamping screw between the slide and the adjusting screw results in a very positive grip of the head 10 on the slide, and prevents vibration and chatter when the holder'is in operation.

Having described our invention, we claim:

1. In a tool holder for machine tools, a

main or body member and a toolslide carried thereby having interfitting parts by which the position of the slide may be adjusted, and a clamping screw extending through said interfitting parts.-

2. In a tool holder, a main or body member, a slide adapted to carry a tool or cutter, the said member and slide havin interfitting parts by which the position 0 the slide may be ad usted, an adjusting screw for changing the position-of the slide, and a clamping screw for clamping the interfitting parts of said member and slide together, said clamping screw being located between the adjusting screw and the slide.

3. In a cutter holder, a main or body member, a slide, said member and slide having interfitting dove-tail parts, and a clamping screw extending transversely through the intel'fitting dove-tail portions of both parts.

4. In a tool holder, a main or body member, a slide adapted to carry a tool or cutter, said member and slide having interfitting dove-tail parts, an adjusting screw for adjusting the position of the slide relative to said member, and a clamping screw at right angles to the adjusting screw and extending through the forward end of said member between the adjusting screw and the slide.v

In testimony whereof, we hereunto afiix our signatures.

MAX E. LANGE'.

THEODORE NORTON. Q 

